Amani Direm2024-03-222024-03-222014-05-091600-5368http://dspace.univ-khenchela.dz:4000/handle/123456789/4455The asymmetric unit of the title compound, [Cu(C2H8N2)2- (H2O)2](C11H11N4O2S)2, contains one sulfamerazinate anion in a general position and one half-cation that is located on a center of inversion. The CuII cation shows a strong Jahn–Teller distortion. It is coordinated by four N atoms of two ethylenediamine ligands in the basal plane and two O atoms at much longer distances in the axial positions in a bipyramidal coordination. In the crystal, the building blocks are connected by N—H N, O—H N, N—H O and O—H O hydrogen bonding into a two-dimensional network parallel to (001).enArticle